明朝成化年间，朝纲腐败，奸邪当道(dào )。西厂东厂(chǎng )为宦官把(bǎ )持，混(hún )淆黑白，陷害忠良，朝(cháo )野内外噤(jìn )若(ruò )寒蝉。时(shí )有(yǒu )赵怀(huái )安（李(lǐ )连杰(jié ) 饰）等流亡剑客挺身而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊(jīng )。适值此时，风头正劲的西厂